Well-borer.



No. 736,20 PATENTED AUG. 11,1909. R E. BROWN WELL BORER. APPLICATION FILED MAY 21, 19031 HO MODEL.

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, UNITED STATES i PatenteclQAugust 11, 1903. I

. PATENT OFFICE.

WELL-BORER.

SPECIFICATION formingpart of Letters Patent No. 736,201, dated August 11, 1903.

Application filed May 21, 1908. serial No. 158,146. (No model.)

T0 at whom it may concern:

Be it known that 1, ROBERT E. BROWN, a citizen of the United States, residing at Lennig, in the county of Halifax and State of Virginia, have invented new and useful Improvements in VVell-Borers-of which the following is a specification.

This invention'relates particularly to that class of well-boring machines having a shaft.

carrying an earth-auger at the lower end thereof.

The object of the invention is to form an improved machine of the kind stated characterized particularly by means for raising and lowering the shaft and augerwithout lifting the driving-gear by which the shaft is rotated.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a front elevation of the machine. Fig. 2 is a side or end elevation thereof, and Fig. 3 is a plan.

Referring specifically to the drawings, the machine is mountedupon a frame 6, which is of suitable and proper height to place the working parts conveniently. An auger-shaft is indicated at 7 and has rotary and longitudinal movement in bearings 8 and 9, of which the fOllllG-P'OI upper bearing is sup ported 011 an arm 10, carried by standards 11 on the frame and the latter or lower hearing is secured to one of the timbers of the frame.

. At 12 is indicated a bevel-gear loose on the the pinion by an arm 16, which projects from the carriage15 under and in supporting contact with the gear 12. It follows that when the carriage is raised or lowered the gearwheel 12 is also raised or lowered therewith. The carriage is lifted by a lever17 thereunder and drops by its own weight, assisted, if necessary, bya spring 18, bearing upon the top thereof.

To rotate the shaft 7, means are provided to clutch the gear-wheel 12 thereto. These means consist of an alligator 19, which is connected by a chain 20 to the hub of the gear- Wheel. To effect a rotary driving movement of the shaft, the alligator is clutched thereon, and rotation of the gear-wheel 12 carries the shaft with it, after which the alligatoris disengaged to lift the shaft-and auger to remove the dirt from the latter. Said lift is effected by a Windlass comprising a drum 21 and its cable 22 and a hand-crank 23 to wind the cable on the drum through gearing 24. The cable passes overaroller 25 and is connected at its free end to the shaft, as indicated at 26.

A brake-lever is indicated at 27, bearing upon the crank-shaft of the Windlass, and serves to hold the Windlass while the dirt is removed from the auger.

assists in driving the auger in the ground.

The shaft is then rotated by the gearing referred to until the auger is full. The alligator is then released and the shaft lifted by the Windlass and the dirt removed. The shaft is then dropped for the succeeding operation.

WVhat I claim as new, and desire to secure by Letters Patent, is-

1. In a well-borer, the combination with the auger-shaft, and means to raise and lower the same, of a vertically-movable carriage, a driving-gear supported thereby, and a clutch between the gear and the shaft permitting relative vertical movement.

2. In a well-borer, the combination with the auger-shaft, and means to raise and lower the same, of a vertically-movable carriage, a driving-gear supported thereby including a gearwheel loose on the shaft, and a clutch between the wheel and the shaft.

In a well-borer, the combination with the auger-shaft, and means to raise and lower the same, of a vertically-movable carriage, a driving-gear supported thereby including a gear- Wheel loose on the shaft, and a clutch carried by the gear-wheel and engageable with the shaft at different places along the same.

4:. In a Well-borer, the combination with the In testimony whereof I have signed my frame and auger-shaft, and vertical guides on name to this specification in the presence of ID the frame, of a carriage slid able in the guides, two subscribing Witnesses.

a drivii'lg-gear carried thereby including a x 5 gear-Wheel loose on the shaft, a clutch be- ROLERH BROWN tween the wheel and the shaft, and means to Witnesses: raise and lower the shaft independently of the HENRY E. BROWN, driving-gear. R. C. HILL. 

